database=# begin; update table set col = 100; server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. The connection to the server was lost. Attempting reset: Succeeded. UPDATE 153 database=# ROLLBACK ; WARNING: there is no transaction in progress ROLLBACK
The update was commited to database. This was psql 8.4 connectig to 8.2 server through pgbouncer 1.3.